Just saw this thread and I had just recommended SUMO to some dude thinking about mining Crytonight w/ his Vega. Posting my reply to him when he asked why he should mine SUMO over Monero:

No legacy of traceable transactions as RingCT w/ minimum ringsize of 12(+1) was implemented since day one. This means that no transaction made on the Sumokoin blockchain can ever be traced back to its participants unlike Monero which implemented RingCT at a later point.

SUMO just implemented sub-addresses which allow you to do your business without every exposing your master wallet address to anyone. It's only been around for a few months and they accomplished implementing this with only FOUR (very talented) devs. Monero only recently implemented sub-addresses themselves with a much much larger dev team. If there's anything that gives me confidence that SUMO is going to be a big thing in the future, it's this. Their dev team may be small but they punch way out of their weight class. Also, there is a premine which will unloc